Lock for sliding doors



(mad.) A. B. WALTERS.

LOCK FOR SLIDING DOORS.

No.` 276,941. I Patented May 1, 188s.

. t l lf UNITED STATES PATENT OFFICE.

ALMERN B. WALTERS, OF PHILADELPHIA, PENNSYLVANIA.

LOCK FOR SLIDING DOORS.

SPECIFICATION `forming part of Letters Patent No. 276,941, dated 'May 1,1883,

1 Application led January 8, 1883. (Model.)

To all whom it 'may concern Be it known that I, A. B. WALTERS, a citizenof the United States, residing at No. 132

A Ul

Souvth Fifteenth street, in the city and county ot' Philadelphia, andState of Pennsylvania, have invented a new and useful Lock for Sliding-Doors, of which thefollowing is a specifi` cation. t

Myinvention relates to improvements on locks for sliding ldoors to holdthe door closed by a fastening `in the rear, with projecting catchesfastened to a movable piece and catching into pockets in the side ot thecar. The said piece is `swung on two journals, one in each end, saidjournals having bearings in the stile running longitudinallyT on top andbottom of door, and it is fastened by any kind of lock or catch. I alsoinclude projections fastened inthe front edge of the`door, and tit` tedin mortises in the jam. These and the lock hold the door,even it' allother guides and fastenings are broken off.

The details of construction and operation of the` several parts will bemore fully set forth hereinafter, and shown in the accompanyingdrawings, in which- Figure l isa side elevation of a car-door with mylocking device attached thereto, the door being closed and locked; andFig. 2, a horizontal section on the line A B, Fig. 1.

Referring more particularly to the drawings, C represents the sideof thecar, provided with suitable side rails, E, which have guides F, securedto and projecting above and below the rails. The door-stiles H areprovided at the eil-ds with trnnnion-bearings for `the trunnions L,whichalso have bearings in the ends ot' a movable door-securing pieceVor section, K. This piece K turns on the trunnions L, and is providedwith two or more projectinglugs, M, rigidly secured to the piece K.rIhese lugs or projections are curved, as shown, and are adapted toenterpockets or recesses N in the side of the car. 'lhe recesses areundercut to conform to the curved portion of the lugs. The door` isfurther provided with two or more dowel-pins, J', which enterdowel-openings in the vertical piece J, secured to the side of the car.The door is provided with a'suitable hasp and staple, O, and the doorheld or secured by a suitable lock. When the door is closed the lugs Mon the section K are held in the recesses N, and the dowel-pins are inthe openin gs in piece J. When it is desired to open the door it is onlynecessary to swing or turn the section Koutwardlyon the trunnions. Thiscarries away the lugs M from engagement with the side of the car, andthe door is then free to be moved along in the guides F. Thus it will beseen that the door will remain closed until the section K is swungoutwardly, no matter whether the rails F and the hasp and lock areremoved or not. The door is secured. and kept from swinging outwardly atthe end opposite the section K by means of the'dowelpins J. Inalterations of old-cars to receive my locking device it is onlynecessary to fasten a lug to the sides of the door to receive thetrunnion L.

Having thus described my invention, what I claim is 1. In combinationwith the side of a car or other structure having recesses or pockets Nat the side of the door, a sliding door provided with a hinged orpivoted section at its vertical edge, said section provided withprojecting arms, as M, on the face adjacent to the carbody, adapted,when the door is closed, to ente'r the pockets or recesses N, asdescribed.

2. In combination with the side of a car or other structure prov-idedwith recesses or pockcts N at the side of the doorway, a sliding doorprovided with a `hinged or pivoted section at its vertical edge, saidsection provided with projecting arms M on the face adjoining thecar-body, adapted to enter the recesses N w heir the door is closed, anda lock for locking said door-section, as described.

3. In combination with the side of a car or other structure providedwith undercut recesses N at the side of the doorway, ar sliding doorprovided with a hinged or pivoted section at its vertical edge, saidsection provided with projecting arms M on the face adjoining thecar-body, adapted to enter the recesses N when the door is closed, and alock for locking said door-section, as described.

VALMERN B. WALTERS.

Witnesses:

IRVINE ELMAGUIRE, JOHN B. MARTIN.

